Tag

Zero Trust

Understand the Zero Trust security model, which operates on the principle of never trust, always verify. Posts cover Zero Trust architecture, identity verification, micro-segmentation, least-privilege access, and practical steps for implementing Zero Trust frameworks across enterprise environments.

posts

Insider Threats

How to Prevent Insider Threats: A Practical Guide

In May 2022, a Yahoo research scientist named Qian Sang downloaded roughly 570,000 pages of proprietary source code to his personal devices — minutes after receiving a job offer from a competitor. Yahoo's internal systems flagged it, but only after the data had already left. That incident is

Carl B. Johnson Jun 12, 2025 7 min read
Zero Trust

What Is Zero Trust? A Practical Guide for 2025

The Breach That Made "Trust But Verify" Obsolete In January 2024, Microsoft disclosed that a Russian state-sponsored threat actor known as Midnight Blizzard had compromised executive email accounts — not by exploiting some exotic zero-day, but by password-spraying a legacy test tenant account that lacked multi-factor authentication. One overlooked

Carl B. Johnson Jun 12, 2025 8 min read
Work From Home Cybersecurity

Work From Home Cybersecurity: A 2025 Survival Guide

In March 2024, a single remote employee at a midsize financial firm clicked a link in what looked like a Microsoft Teams notification. Within 72 hours, a threat actor had moved laterally across the company's network, exfiltrated 1.2 million customer records, and deployed ransomware that locked every

Carl B. Johnson May 25, 2025 7 min read
VPN Best Practices

VPN Best Practices: 9 Rules That Actually Stop Breaches

In May 2024, Check Point disclosed that threat actors were actively exploiting a zero-day vulnerability in its VPN products — CVE-2024-24919 — to harvest Active Directory credentials and move laterally through enterprise networks. Attackers didn't need a sophisticated exploit chain. They needed one VPN gateway running a default configuration with

Carl B. Johnson May 25, 2025 7 min read
NIST Cybersecurity Framework

NIST Cybersecurity Framework: A Practical Guide for 2025

The Framework Nobody Reads — Until After the Breach In February 2024, Change Healthcare suffered a ransomware attack that disrupted pharmacy operations across the United States for weeks. UnitedHealth Group eventually disclosed that the breach affected roughly 100 million individuals — making it one of the largest healthcare data breaches in history.

Carl B. Johnson May 10, 2025 7 min read
Securing Cloud Applications

Securing Cloud Applications: A Practical 2025 Guide

The Snowflake Breach Changed How I Think About Cloud Risk In mid-2024, threat actors compromised over 165 organizations by exploiting stolen credentials against Snowflake cloud accounts that lacked multi-factor authentication. Ticketmaster, AT&T, Santander — massive names, massive data losses. The root cause wasn't some exotic zero-day. It

Carl B. Johnson Apr 22, 2025 7 min read
SaaS Security Best Practices

SaaS Security Best Practices: A 2025 Field Guide

In January 2025, the Cybersecurity and Infrastructure Security Agency (CISA) issued an emergency directive after threat actors exploited misconfigured SaaS environments across multiple federal agencies. The attackers didn't need sophisticated zero-day exploits. They walked in through overprivileged service accounts, dormant API tokens, and single-factor authentication — problems that every

Carl B. Johnson Apr 22, 2025 7 min read
Vendor Risk Management

Vendor Risk Management Cybersecurity: A Practical Guide

The Breach That Didn't Start With You In February 2024, Change Healthcare — a subsidiary of UnitedHealth Group — suffered a ransomware attack that disrupted healthcare payment processing across the entire United States for weeks. The threat actor didn't breach UnitedHealth directly. They compromised a vendor system that

Carl B. Johnson Feb 28, 2025 8 min read